Wheel center cap



FIG. 1 is a perspective view of a wheel center cap, showing my new design

FIG. 2 is a front view thereof a wheel center cap

FIG. 3 is a side view of a wheel center cap

FIG. 4 is a reduced perspective view of a wheel center cap shown in its position of use; and,

FIG. 5 is a front view of FIG. 4.

The broken line showing of the wheel is included for the purpose of illustrating environment and forms no part of the claimed design. 

CLAIM The ornamental design for a wheel center cap, as shown and described. 